Biobased Vanillin Production by Oxidative Depolymerization of Kraft Lignin on a Nitrogen- and Phosphorus-Functionalized Activated Carbon Catalyst
Miguel García-Rollán,
Maria N. Rivas-Márquez,
Salvador Bertran-Llorens
et al.
Abstract:The sustainable production of vanillin from the oxidative depolymerization of lignin was evaluated. Vanillin was produced from Kraft lignin using heterogeneous catalysts based on activated carbons prepared by chemical activation of sodium lignosulfonate with H 3 PO 4 . The novel redox catalytic system, obtained by HNO 3 treatment, allows the heterogenization of nitrobenzene structures on the activated carbon, reaching vanillin yield 30% higher than that obtained without a heterogeneous catalyst (about 3.1 wt %… Show more
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